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Cave Reedling (Indolestes obiri)

The Cave Reedling (Indolestes obiri) is a damselfly species of the family Lestidae, which contains 14 species in Australia.

The identification key to the family Lestidae consists of 15 couplets, 4 of which are pertinent to Indolestes obiri. Click on the numbers on the right to display the corresponding couplets. Or click on the ALLin1 button to see all the relevant couplets together in a single, scrollable window.

#FamilySpeciesCouplet No.
 LestidaeCave Reedling
(Indolestes obiri)
  • Lestidae: Key couplet 1 of 15

  • couplet drawing
  • ● Quadrilateral cell of hindwing more than 1.15 times, usually 1.3-1.5 times longer than that of forewing
  • b ↑
  • Lestidae: Key couplet 2 of 15

  • couplet drawingcouplet drawing
  • ● Front of synthorax marked with vertical, metallic green stripe on each side, expanded laterally near centre to form brownish green or green spot
    ● Ac approximately midway between Ax1 and Ax2 in forewing, often nearer to Ax2

    ⇒ genus: Indolestes
  • a ↑
  • Lestidae: Key couplet 3 of 15

  • ○ Hindwing of male 20 mm long or more, of female 21 mm or more
  • b ↑
  • Lestidae: Key couplet 4 of 15

  • couplet drawingcouplet drawing
  • ○ Abdominal terga 3-6 with pale basal ring and well-defined subapical band
    ● Metapleural suture with dark spot at upper end and narrow dark stripe over much, or all, of its lower course
    ● Superior appendages of male convergent at tips, forcipate

    ⇒ species: Cave Reedling (Indolestes obiri)
  • b ↑
1  
  • Lestidae: Key couplet 1 of 15

  • couplet drawing
  • ● Quadrilateral cells of forewing and hindwing similar in size and shape, that of hindwing less than 1.10 times length of forewing quadrilateral

    ⇒ species: Dusky Spreadwing (Lestes concinnus)
a ↑
b ↓
  • couplet drawing
  • ● Quadrilateral cell of hindwing more than 1.15 times, usually 1.3-1.5 times longer than that of forewing

2  
  • Lestidae: Key couplet 2 of 15

  • couplet drawingcouplet drawing
  • ● Front of synthorax marked with vertical, metallic green stripe on each side, expanded laterally near centre to form brownish green or green spot
    ● Ac approximately midway between Ax1 and Ax2 in forewing, often nearer to Ax2

    ⇒ genus: Indolestes
a ↑
b ↓
  • couplet drawingcouplet drawing
    couplet drawingcouplet drawingcouplet drawing
  • ● Front of synthorax unicolorous or striped, the stripe not expanded near centre
    ● Ac generally near Ax1, basal or distal, occasionally almost midway between Ax1 and Ax2

    ⇒ genus: Austrolestes

3  
  • Lestidae: Key couplet 3 of 15

  • ○ Hindwing of male shorter than 20 mm long, of female shorter than 21 mm

    ⇒ species: Small Reedling (Indolestes alleni)
a ↑
b ↓
  • ○ Hindwing of male 20 mm long or more, of female 21 mm or more

4  
  • Lestidae: Key couplet 4 of 15

  • couplet drawingcouplet drawing
  • ○ Abdominal terga 3-6 marked with pale basal ring, blue in mature male, ill-defined in mature female, and with or without ill-defined pale subapical band
    ● Metapleural suture marked brown only at upper end
    ● Superior appendages of male sinuate, reflexed and broadly contiguous at tips

    ⇒ species: Slender Reedling (Indolestes tenuissimus)
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ○ Abdominal terga 3-6 with pale basal ring and well-defined subapical band
    ● Metapleural suture with dark spot at upper end and narrow dark stripe over much, or all, of its lower course
    ● Superior appendages of male convergent at tips, forcipate

    ⇒ species: Cave Reedling (Indolestes obiri)

Australian distribution